Spotlight



s. L. LEBBY SPOTLIGHT.

APPLICATION FILED FFB. 7, 1921.

J; ,Q08, 1 O4; Patented Feb 28, 1922.

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SPOTLIGHT.

APPLICATION FILED FEB. 7, 1921 l ;408,1Q4. Patented Feb. 28, 1922.

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STATES.

STATES LEE LEBBY, OF SAVANNAH, GEORGIA.

SPOTLIGHT.

Application filed February 7, 1921. Serial mi. 443,196. 7

all whom may concern:

i useful Improvements in Spotlights, of

which the following is especification.

My present invention relates to improve ments in search lights orprojectors and is designed more perticuleriy for embodiment in whet is commonly known as spot lights which are lurgely used on motor Vehicles for illuminating side of the reed. It is not limited to such use however, being advantegeous in other situations, as for example on motor boots he invention aims to provide a simple, econ-cmicel; durable, and efficient form of projector which can be recdil adjusted to throw the beern of light in e. incited direction end which when so adjusted, will be firndy held in position so as not to be occidcntelly dlspleced by the vibration or jars of the vehicle.

further object is to provide it construction. which will enable the lamp to be readily detached from its supporting bracket and used es s trouble light, and as easily repluced.

With these and other objects in vicw'the invention includes the novel features of coniction end errcngement and combination oi. ports hereinefier described and particulerly defined by the appended claims.

An embodiment of my invention. is illustrated in the accompanying drawings in WlllQh-r Figure l is e vertical section taken centrally through s. complete lamp or projector.

Figure 2 ice reer view.

Figures 3, l. 5 and 6 were detail views of the brecket end clumping means.

Figures 7, 8 and 9 ere detail views of the follower.

Figure 10 is e detail. view of the stem and handle with :1 portion oi the lamp casing in section.

Referring by reference characters to these drawings the numeral 1 desi notes the lamp or projector us a whole w ich, except as hereinafter specified, may be of the ordinary or any desired typo, though I have shown us my preferred form of lamp one having a compensated lens reflector or mirror 2 and light filament 3 such as forms the subject of en epplicetion filed by me on the seventh Specification of Letters I'atent.

Patented Feb. 28, 1922.

day of December, 1920, Serial Number 428,917.

The light bulb 3 may be supported in any desired manner, but I have illustrated it herein as supported by improved focusing standard 4 which forms the subject of another application filedby me on the 7th day of February, 1921, Serial No. 4 3497. 4

The back or rear wall of the lamp or projector casing is made of spherical curvature as indicated at 1 and carries e rigid rearwardly projecting stud ormember 1", preferably of tubular fiormation, which is provided at its outer extremity with e. handle 1.

The supporting bracket is indicated at 5 and is provided at en end with any suitable clamp or holding means 5* for securing it to the wind shield, car body, or other support in connection with which the projector is to be used.

This bracket carries at its opposite end a concavo-conyex portion 5" of e spherical curvature corresponding to the curvature of the rear wall 1 of the-lamp cesium The body of the bracket may be conveniently formed of sheet metal which enables the concxtvo-conveu portion to be read.- ily shaped byprcssing, through the use of suitable dies. v v

The concave-convex portion is provided with a central opening b, which is' designed to permit the passe e of the stud 1", and which is considerab y larger in diameter than said stud to permit lateral movement of the stud in all directions while retained in said opening. The concave-convex portion is also provided with e laterel slot 22 leading from the central opening to the edgie of the-bracket, which slot is of just so cient size to permit the passage oi the stud when it .is desired to remove the lamp from the bracket for use as a trouble lamp. In order to hold the lamp normally clamped. to the bracket, I provide e follower plate 6 of e spherioeYcurvuture corresponding to that of the convex side of the bracket. i

A spring 7 is provided which tends to draw the follower plete and lamp casing towards each other, thereby clamping the the projector in any dlrection within the limits permitted by the large opening in the bracket. a universal motion of adjustment being permitted by the coacting spherical surfaces. I prefer to provide the handle 1 with a tubular portion 0 which is secured to the stud l by a pin 0 and to provide the follower plate with a tubular guide member (3 which may be secured thereto by sweating or other convenient manner and has its outer portion telescopically engaging the tubular portion 0, and with the spring 7 m the shape of a helical coil lying between the guide member a and the stud, and hearing at its outer end against the end of the handle tube 0 and at its inner end against the follower plate, being held in compression between said members.

The guide member (3 of the follower plate is provided with finger receiving projections 6" in convenient position to be engaged by two of the fingers of the hand which grasps the handle so that by a slight pressure of the fingers the pressure of the spring may be relieved sufficiently to enable the adjustment hereinbefore described to be readily effected. A simple relaxation of the fingers causes the lamp to be automatically locked or clamped in adjusted position and firmly held until furtheradjustment is desired.

To remove the lamp from the. bracket to enable it to be used as a trouble lamp. it is only necessary to exert enough pressure on the spring to remove all clamping action and simultaneously move the lamp in a direction to cause the stud 1 to pass through the slot in the bracket. The lamp may be as easily and quickly repositioned on the bracket by a similar operation.

The coacting faces of the spherical portions may be provided with annular rings or washers of yielding material as indicated at 5 and 6 to secure an easy yielding and uniform tension or degree of engagement between the parts.

A pin 8 is provided on the spherical portion l" of the lamp casing to engage the slot 7) in the bracket and also a slot 1) in the follower plate (5 to maintain the bulb standard substantially vertical, while the lamp is supported by the bracket.

Having thus described my invention what I claim is- 1. A lamp or projector having a back wall of spherical curvature and a projectiiig stud, a supporting bracket having a concave-convex portion with the concavity thereof fitting said spherical back all, said concave-com vex portion having an opening of larger diameter than the stud through which said stud projects, a handle on said stud. spring means for holding the coacting surfaces of the lamp casing and bracket in frictional engagement and means positioned adjacent-.

said handle for relieving the action of the spring.

lamp or projector having a back wall of spherical curvature and a projecting stud. a supporting bracket having a concave-convex portion with the concavity thereof fitting said spherical back wall, said concave-convex portion having an opening of larger diameter than the stud through which said stud projects. a follower plate slidably guided relative to the stud and having a spherical face .cooperating with the face of the bracket. a spring tending to force said stud and follower plate in opposite 'directions. and means for relieving the action of the spring.

j 3. lamp or projector having a back'i'all of spherical curvature and a projecting stud. a supporting bracket having a concave-convex portion with'the concavity thereof fitting said spherical back wall. said concave-convcx portion having an opening of larger diamctcr than the stud through which said stud projects. a follower plate having a spherical face coacting with the convex portion of the bracket and having a tubular part slidable about said stud. a helical sprinmilrtel-posed between said tubular part an arranged to press said stud and tubular part in opposite directions. a handle on said stud. and finger grasping members carried by said tubular part adjacent the handle.

4. In combination a bracket having a bearing portion with a transverse slot therein.a lamp casinghaving arcar wallto coact with said bearing portion and a stud to projcct through said slot. a follower plate slid ably positioned relative to said stud and having a face to coact with the rear face of the bracket. spring means tending to press said follower plate and stud in opposite directions, ahandle on the stud. and finger grasping portions connected with the foll'ower plate and positioned adjacent the handle.

In testimony whereof. I allixiny signa ture.

STATES LEE LEBBY. 

